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3 years ago

Help anyone please and thank you

Mathematics

1 answer:

Savatey [412]3 years ago

5 0

the answer would 1/4 of a gallon

simply because 4 of the containers equals one gallon

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Funcion. que a cada numero le asocia su mitad

expeople1 [14]

La función que a cada número le asocia su mitad es: f(x)= x/2

Explicación:

La mitad de una cantidad consiste en dividir el total en dos partes iguales, por lo tanto, la función debe representar una división entre el total y 2. Sea x el total, la función sería:

f(x)= x/2

Ejemplos:

La mitad de 20: f(20)= 20/2 = 10

La mitad de 8: f(8)= 8/2 = 4

La mitad de 100: f(100)= 100/2 = 50

La mitad de 2354: f(2354)= 2354/2 =1177

6 0

3 years ago

If f(x)= x3 - 2x, find f(-2)

emmasim [6.3K]

Answer:

i'm not that smart or ANYTHIGN but i tried:

4f2inx

Step-by-step explanation:

3 0

3 years ago

A student takes a true-false test that has 10 questions and guesses randomly at each answer. Let X be the number of questions an

Dvinal [7]

Answer:

P(Fewer than 3) = 0.05.

Step-by-step explanation:

We are given that a student takes a true-false test that has 10 questions and guesses randomly at each answer.

The above situation can be represented through Binomial distribution;

$P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....$

where, n = number of trials (samples) taken = 10 questions

r = number of success = fewer than 3

p = probability of success which in our question is probability

that question is answered correctly, i.e; 50%

LET X = Number of questions answered correctly

So, it means X ~ Binom(n = 10, p = 0.50)

Now, Probability that Fewer than 3 questions are answered correctly is given by = P(X < 3)

P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)

= $\binom{10}{0}\times 0.50^{0} \times (1-0.50)^{10-0}+ \binom{10}{1}\times 0.50^{1} \times (1-0.50)^{10-1}+ \binom{10}{2}\times 0.50^{2} \times (1-0.50)^{10-2}$

= $1 \times 0.50^{10} + 10 \times 0.50^{10} +45 \times 0.50^{10}$

= 0.05

Hence, the P(Fewer than 3) is 0.05.

4 0

4 years ago

Mariah has an 8-sided die that is numbered 1 to 8. She rolls the die 96 times. About how many times can she roll an 8

pentagon [3]

Answer:

Step-by-step explanation:

96 divided by 8 is 12

7 0

3 years ago

Read 2 more answers

The length of two complementary angles are x and 2x+12. Find the measures of the angles.

Shtirlitz [24]

There's no such thing as the "length"of an angle.
But we know what you're getting at.

You have said that the angles are complementary. If two angles are
complementary, then their sum is 90 degrees, so we can take your
two angles and write:

 x (one angle) plus (2x + 12) (the other one) = 90 degrees

 x + 2x + 12 = 90

Subtract 12 from each side: x + 2x = 78

Add the x's on the left side: 3x = 78

Divide each side by 3 : x = 26 degrees

One angle is 'x' = 26 degrees

The other one is (2x + 12) = 52+12 = 64 degrees

4 0

4 years ago